The welder can also be optimised for aluminum welding by connecting Hobart's optional DP-3545-20 spool gun. New features include a softer, sweeter arc and seven additional voltage taps for a total of 12 to improve arc starts and minimise weld clean up. A more robust cast-aluminum two-roll wire-drive system replaces the previous plastic-drive system and a patented hub design requires no tools to adjust for a variety of spool sizes (1, 2, 10 and 45lb) and ensures perfect alignment of the spool and feed head.
Additional features include two cable hangers mounted on the unit's side to keep the power cord, MIG gun cable, work lead and welding hood organised and out of the way, and an onboard storage compartment for contact tips and nozzles. A built-in running gear/cylinder rack is standard.